Statistics and Discoveries at the LHC

author: Glen Cowan, Department of Physics and Astronomy, University of London
published: Oct. 11, 2011,   recorded: June 2010,   views: 3197
released under terms of: Creative Commons Attribution Non-Commercial Share Alike (CC-BY-NC-SA)

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The lectures will give an introduction to statistics as applied in particle physics and will provide all the necessary basics for data analysis at the LHC. Special emphasis will be placed on the the problems and questions that arise when searching for new phenomena, including p-values, discovery significance, limit setting procedures, treatment of small signals in the presence of large backgrounds. Specific issues that will be addressed include the advantages and drawbacks of different statistical test procedures (cut-based, likelihood-ratio, etc.), the look-elsewhere effect and treatment of systematic uncertainties.

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